WS-7265_30671_CA_WSW_20230327_WW37-Results

03/24/23
Technical Report for
Atlas
Pantry 161 1031 Hwy 87 N, Elon College, NC
PANT1612023
SGS Job Number: LA88830
Sampling Date: 03/17/23
Report to:
ATC Group Services LLC.
2725 East Millbrook Road Suite 121
Raleigh, NC 27604
[e-mail]
ATTN: Maureen Jackson
Total number of pages in report:
Certifications: LDEQ(2048), LDHH(LA150012), AR(14-045-04), AZ(AZ0805), FL(E87657), IL(200082), KY(#31),
NC(487), SC(73004001), NJ(LA007), TX(T104704186-18-16), WV(257)
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc. • 500 Ambassador Caffery • Scott, LA 70583 • tel: [phone]
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Rebecca Hebert 337-237-4775
Kesavalu Bagawandoss
General Manager
Scott, LA 03/24/23
e-Hardcopy 2.0
Automated Report
22
SGS is the sole authority for authorizing edits or modifications to this document.
Unauthorized modification of this report is strictly prohibited.
Review standard terms at: http://www.sgs.com/en/terms-and-conditions
The results set forth herein are provided by SGS North America Inc.
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LA88830
Table of Contents
-1-
Sections:
Section 1: Sample Summary ................................................................................................... 3
Section 2: Summary of Hits .................................................................................................... 4
Section 3: Sample Results ........................................................................................................5
3.1: LA88830-1: WW37 ...................................................................................................... 6
Section 4: Misc. Forms ............................................................................................................9
4.1: Chain of Custody ........................................................................................................... 10
Section 5: MS Volatiles - QC Data Summaries ..................................................................... 13
5.1: Method Blank Summary ................................................................................................ 14
5.2: Blank Spike/Blank Spike Duplicate Summary .............................................................. 17
5.3: Matrix Spike/Matrix Spike Duplicate Summary ........................................................... 20 123452 of 22
LA88830
SGS North America Inc.
Sample Summary
Atlas
Job No:LA88830
Pantry 161 1031 Hwy 87 N, Elon College, NC
Project No: PANT1612023
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
LA88830-1 03/17/23 11:50 BB 03/21/23 AQ Ground Water WW37
3 of 22
LA888301
Summary of Hits Page 1 of 1
Job Number:LA88830
Account:Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Collected:03/17/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA88830-1 WW37
Methyl Tert Butyl Ether 0.52 0.50 0.068 ug/l SM 6200B
4 of 22
LA888302
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
5 of 22
LA888303
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:WW37
Lab Sample ID:LA88830-1 Date Sampled:03/17/23
Matrix:AQ - Ground Water Date Received:03/21/23
Method:SM 6200B Percent Solids:n/a
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0145415.D 1 03/23/23 17:22 MB n/a n/a V2K4060
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No. Compound Result RL MDL Units Q
67-64-1 Acetone
a ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
6 of 22
LA8883033.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:WW37
Lab Sample ID:LA88830-1 Date Sampled:03/17/23
Matrix:AQ - Ground Water Date Received:03/21/23
Method:SM 6200B Percent Solids:n/a
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
VOA Special List
CAS No. Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
637-92-3 Ethyl Tert-Butyl Ether ND 0.50 0.056 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether 0.52 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
75-85-4 Tert-Amyl Alcohol ND 25 0.77 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.084 ug/l
75-65-0 Tert-Butyl Alcohol ND 10 1.0 ug/l
762-75-4 tert-Butyl Formate ND 5.0 0.035 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
7 of 22
LA8883033.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:WW37
Lab Sample ID:LA88830-1 Date Sampled:03/17/23
Matrix:AQ - Ground Water Date Received:03/21/23
Method:SM 6200B Percent Solids:n/a
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
VOA Special List
CAS No. Compound Result RL MDL Units Q
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 93%70-130%
2037-26-5 Toluene-D8 102%70-130%
460-00-4 4-Bromofluorobenzene 97%70-130%
(a) Associated CCV outside of control limits high, sample was ND.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
8 of 22
LA8883033.1
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
9 of 22
LA888304
LA88830: Chain of Custody
Page 1 of 3
10 of 22
LA8883044.1
LA88830: Chain of Custody
Page 2 of 3
11 of 22
LA8883044.1
SGS Sample Receipt Summary
Job Number:LA88830 Client:ATC
Date / Time Received:3/21/2023 9:45:00 AM Delivery Method:FEDEX
Project:PANTRY #161
4. No. Coolers:1
Airbill #'s:5707 9051 0296
Cooler Security
1. Custody Seals Present:
Y or N
2. Custody Seals Intact:
3. COC Present:
4. Smpl Dates/Time OK
2. Thermometer ID:
Cooler Temperature Y or N
1. Temp criteria achieved:
3. Cooler media:
IR002;
Ice (direct contact)
Quality Control Preservation Y or N N/A
1. Trip Blank present / cooler:
2. Trip Blank listed on COC:
3. Samples preserved properly:
4. VOCs headspace free:
Sample Integrity - Documentation Y or N
1. Sample labels present on bottles:
2. Container labeling complete:
3. Sample container label / COC agree:
Sample Integrity - Condition Y or N
1. Sample recvd within HT:
3. Condition of sample:
2. All containers accounted for:
Sample Integrity - Instructions
1. Analysis requested is clear:
2. Bottles received for unspecified tests
3. Sufficient volume recvd for analysis:
4. Compositing instructions clear:
5. Filtering instructions clear:
Intact
Y or N
Comments
Y or N N/A
Cooler Temps (Initial/Adjusted):#1: (0.8/0.6);
LA88830: Chain of Custody
Page 3 of 3
12 of 22
LA8883044.1
SGS North America Inc.
MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Scott, LA
Section 5
13 of 22
LA888305
Method Blank Summary Page 1 of 3
Job Number:LA88830
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4060-MB1 2K0145414.D 1 03/23/23 MB n/a n/a V2K4060
The QC reported here applies to the following samples:Method: SM 6200B
LA88830-1
CAS No. Compound Result RL MDL Units Q
67-64-1 Acetone 1.5 10 1.2 ug/l J
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
14 of 22
LA8883055.1.1
Method Blank Summary Page 2 of 3
Job Number:LA88830
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4060-MB1 2K0145414.D 1 03/23/23 MB n/a n/a V2K4060
The QC reported here applies to the following samples:Method: SM 6200B
LA88830-1
CAS No. Compound Result RL MDL Units Q
637-92-3 Ethyl Tert-Butyl Ether ND 0.50 0.056 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
75-85-4 Tert-Amyl Alcohol ND 25 0.77 ug/l
994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.084 ug/l
75-65-0 Tert-Butyl Alcohol ND 10 1.0 ug/l
762-75-4 tert-Butyl Formate ND 5.0 0.035 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
15 of 22
LA8883055.1.1
Method Blank Summary Page 3 of 3
Job Number:LA88830
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4060-MB1 2K0145414.D 1 03/23/23 MB n/a n/a V2K4060
The QC reported here applies to the following samples:Method: SM 6200B
LA88830-1
CAS No. Compound Result RL MDL Units Q
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No. Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 99% 70-130%
2037-26-5 Toluene-D8 102% 70-130%
460-00-4 4-Bromofluorobenzene 99% 70-130%
16 of 22
LA8883055.1.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA88830
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4060-BS1 2K0145411.D 1 03/23/23 MB n/a n/a V2K4060
V2K4060-BSD1 2K0145412.D 1 03/23/23 MB n/a n/a V2K4060
The QC reported here applies to the following samples:Method: SM 6200B
LA88830-1
Spike BSP BSP BSD BSD Limits
CAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD
67-64-1 Acetone 50 71.5 143* a 69.0 138* a 4 70-130/30
71-43-2 Benzene 20 20.7 104 19.6 98 5 70-130/30
108-86-1 Bromobenzene 20 20.6 103 18.3 92 12 70-130/30
74-97-5 Bromochloromethane 20 19.2 96 19.5 98 2 70-130/30
75-27-4 Bromodichloromethane 20 20.8 104 19.9 100 4 70-130/30
75-25-2 Bromoform 20 25.2 126 22.0 110 14 70-130/30
104-51-8 n-Butylbenzene 20 21.9 110 19.9 100 10 70-130/30
135-98-8 sec-Butylbenzene 20 20.9 105 18.4 92 13 70-130/30
98-06-6 tert-Butylbenzene 20 21.2 106 18.5 93 14 70-130/30
56-23-5 Carbon Tetrachloride 20 20.5 103 20.5 103 0 70-130/30
108-90-7 Chlorobenzene 20 21.6 108 19.4 97 11 70-130/30
75-00-3 Chloroethane 20 20.6 103 20.1 101 2 60-140/30
67-66-3 Chloroform 20 18.4 92 18.2 91 1 70-130/30
95-49-8 o-Chlorotoluene 20 21.4 107 19.0 95 12 70-130/30
106-43-4 p-Chlorotoluene 20 21.6 108 19.5 98 10 70-130/30
124-48-1 Dibromochloromethane 20 24.0 120 21.8 109 10 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 23.4 117 20.6 103 13 70-130/30
106-93-4 1,2-Dibromoethane 20 21.5 108 19.1 96 12 70-130/30
75-71-8 Dichlorodifluoromethane 20 17.2 86 16.7 84 3 60-140/30
541-73-1 m-Dichlorobenzene 20 21.2 106 18.7 94 13 70-130/30
95-50-1 o-Dichlorobenzene 20 21.3 107 18.7 94 13 70-130/30
106-46-7 p-Dichlorobenzene 20 21.2 106 18.7 94 13 70-130/30
75-34-3 1,1-Dichloroethane 20 18.9 95 18.6 93 2 70-130/30
107-06-2 1,2-Dichloroethane 20 19.3 97 18.5 93 4 70-130/30
75-35-4 1,1-Dichloroethylene 20 18.7 94 18.0 90 4 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 19.0 95 18.9 95 1 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 19.3 97 18.9 95 2 70-130/30
78-87-5 1,2-Dichloropropane 20 19.2 96 18.6 93 3 70-130/30
142-28-9 1,3-Dichloropropane 20 20.7 104 18.5 93 11 70-130/30
594-20-7 2,2-Dichloropropane 20 17.9 90 18.3 92 2 70-130/30
563-58-6 1,1-Dichloropropene 20 19.6 98 19.5 98 1 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 22.1 111 21.3 107 4 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 23.4 117 20.7 104 12 70-130/30
108-20-3 Di-Isopropyl Ether 20 18.5 93 18.4 92 1 70-130/30
64-17-5 Ethyl Alcohol 400 431 108 413 103 4 70-130/30
100-41-4 Ethylbenzene 20 20.8 104 18.2 91 13 70-130/30
* = Outside of Control Limits.
17 of 22
LA8883055.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA88830
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4060-BS1 2K0145411.D 1 03/23/23 MB n/a n/a V2K4060
V2K4060-BSD1 2K0145412.D 1 03/23/23 MB n/a n/a V2K4060
The QC reported here applies to the following samples:Method: SM 6200B
LA88830-1
Spike BSP BSP BSD BSD Limits
CAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD
637-92-3 Ethyl Tert-Butyl Ether 20 19.3 97 19.1 96 1 70-130/30
591-78-6 2-Hexanone 50 54.1 108 45.9 92 16 70-130/30
87-68-3 Hexachlorobutadiene 20 19.3 97 19.6 98 2 70-130/30
98-82-8 Isopropylbenzene 20 20.7 104 18.0 90 14 70-130/30
99-87-6 p-Isopropyltoluene 20 21.3 107 19.0 95 11 70-130/30
74-83-9 Methyl Bromide 20 17.8 89 17.3 87 3 60-140/30
74-87-3 Methyl Chloride 20 16.6 83 16.2 81 2 60-140/30
74-95-3 Methylene Bromide 20 19.7 99 18.7 94 5 70-130/30
75-09-2 Methylene Chloride 20 18.1 91 18.2 91 1 70-130/30
78-93-3 Methyl Ethyl Ketone 50 53.9 108 52.2 104 3 70-130/30
108-10-1 4-Methyl-2-pentanone 50 52.4 105 48.2 96 8 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 19.0 95 18.6 93 2 70-130/30
91-20-3 Naphthalene 20 23.6 118 20.1 101 16 70-130/30
103-65-1 n-Propylbenzene 20 21.5 108 18.5 93 15 70-130/30
100-42-5 Styrene 20 21.3 107 19.1 96 11 70-130/30
75-85-4 Tert-Amyl Alcohol 200 207 104 191 96 8 50-150/30
b
994-05-8 Tert-Amyl Methyl Ether 20 19.2 96 18.2 91 5 70-130/30
75-65-0 Tert-Butyl Alcohol 100 94.7 95 91.6 92 3 70-130/30
762-75-4 tert-Butyl Formate 20 15.8 79 17.4 87 10 50-150/30
b
630-20-6 1,1,1,2-Tetrachloroethane 20 22.4 112 20.2 101 10 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 20.9 105 17.9 90 15 70-130/30
127-18-4 Tetrachloroethylene 20 22.5 113 19.6 98 14 70-130/30
108-88-3 Toluene 20 20.3 102 17.8 89 13 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 22.2 111 19.1 96 15 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 22.6 113 19.9 100 13 70-130/30
71-55-6 1,1,1-Trichloroethane 20 20.3 102 19.9 100 2 70-130/30
79-00-5 1,1,2-Trichloroethane 20 20.5 103 18.0 90 13 70-130/30
79-01-6 Trichloroethylene 20 22.5 113 21.0 105 7 70-130/30
75-69-4 Trichlorofluoromethane 20 21.2 106 20.7 104 2 60-140/30
96-18-4 1,2,3-Trichloropropane 20 21.0 105 18.0 90 15 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 20.8 104 18.5 93 12 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 21.4 107 18.8 94 13 70-130/30
108-05-4 Vinyl Acetate 20 22.0 110 22.1 111 0 70-130/30
75-01-4 Vinyl Chloride 20 19.6 98 19.1 96 3 60-140/30
m,p-Xylene 40 42.6 107 37.6 94 12 70-130/30
95-47-6 o-Xylene 20 20.4 102 18.1 91 12 70-130/30
* = Outside of Control Limits.
18 of 22
LA8883055.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA88830
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4060-BS1 2K0145411.D 1 03/23/23 MB n/a n/a V2K4060
V2K4060-BSD1 2K0145412.D 1 03/23/23 MB n/a n/a V2K4060
The QC reported here applies to the following samples:Method: SM 6200B
LA88830-1
Spike BSP BSP BSD BSD Limits
CAS No. Compound ug/l ug/l % ug/l % RPD Rec/RPD
1330-20-7 Xylene (total)60 63.0 105 55.8 93 12 70-130/30
CAS No. Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 95%100% 70-130%
2037-26-5 Toluene-D8 99%100% 70-130%
460-00-4 4-Bromofluorobenzene 94%94% 70-130%
(a) Outside control limits biased high. Analyte not detected in associated samples.
(b) Advisory control limits.
* = Outside of Control Limits.
19 of 22
LA8883055.2.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA88830
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA88830-1MS 2K0145416.D 20 03/23/23 MB n/a n/a V2K4060
LA88830-1MSD 2K0145417.D 20 03/23/23 MB n/a n/a V2K4060
LA88830-1 2K0145415.D 1 03/23/23 MB n/a n/a V2K4060
The QC reported here applies to the following samples:Method: SM 6200B
LA88830-1
LA88830-1 Spike MS MS Spike MSD MSD Limits
CAS No. Compound ug/l Q ug/l ug/l % ug/l ug/l % RPD Rec/RPD
67-64-1 Acetone ND 1000 898 90 1000 658 66* a 31* a 70-130/20
71-43-2 Benzene ND 400 365 91 400 372 93 2 70-130/20
108-86-1 Bromobenzene ND 400 372 93 400 373 93 0 70-130/20
74-97-5 Bromochloromethane ND 400 387 97 400 388 97 0 70-130/20
75-27-4 Bromodichloromethane ND 400 398 100 400 407 102 2 70-130/20
75-25-2 Bromoform ND 400 449 112 400 437 109 3 70-130/20
104-51-8 n-Butylbenzene ND 400 331 83 400 329 82 1 70-130/20
135-98-8 sec-Butylbenzene ND 400 305 76 400 304 76 0 70-130/20
98-06-6 tert-Butylbenzene ND 400 330 83 400 333 83 1 70-130/20
56-23-5 Carbon Tetrachloride ND 400 294 74 400 298 75 1 70-130/20
108-90-7 Chlorobenzene ND 400 378 95 400 383 96 1 70-130/20
75-00-3 Chloroethane ND 400 336 84 400 337 84 0 60-140/20
67-66-3 Chloroform ND 400 354 89 400 346 87 2 70-130/20
95-49-8 o-Chlorotoluene ND 400 364 91 400 371 93 2 70-130/20
106-43-4 p-Chlorotoluene ND 400 379 95 400 383 96 1 70-130/20
124-48-1 Dibromochloromethane ND 400 436 109 400 435 109 0 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 400 410 103 400 401 100 2 70-130/20
106-93-4 1,2-Dibromoethane ND 400 384 96 400 380 95 1 70-130/20
75-71-8 Dichlorodifluoromethane ND 400 195 49* b 400 194 49* b 1 60-140/20
541-73-1 m-Dichlorobenzene ND 400 379 95 400 378 95 0 70-130/20
95-50-1 o-Dichlorobenzene ND 400 381 95 400 382 96 0 70-130/20
106-46-7 p-Dichlorobenzene ND 400 381 95 400 383 96 1 70-130/20
75-34-3 1,1-Dichloroethane ND 400 345 86 400 353 88 2 70-130/20
107-06-2 1,2-Dichloroethane ND 400 372 93 400 376 94 1 70-130/20
75-35-4 1,1-Dichloroethylene ND 400 256 64* b 400 263 66* b 3 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 400 364 91 400 369 92 1 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 400 323 81 400 328 82 2 70-130/20
78-87-5 1,2-Dichloropropane ND 400 368 92 400 376 94 2 70-130/20
142-28-9 1,3-Dichloropropane ND 400 380 95 400 379 95 0 70-130/20
594-20-7 2,2-Dichloropropane ND 400 292 73 400 303 76 4 70-130/20
563-58-6 1,1-Dichloropropene ND 400 291 73 400 296 74 2 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 400 433 108 400 435 109 0 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 400 426 107 400 428 107 0 70-130/20
108-20-3 Di-Isopropyl Ether ND 400 374 94 400 376 94 1 70-130/20
64-17-5 Ethyl Alcohol ND 8000 7600 95 8000 ND 0* b 200* a 70-130/20
100-41-4 Ethylbenzene ND 400 333 83 400 336 84 1 70-130/20
* = Outside of Control Limits.
20 of 22
LA8883055.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA88830
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA88830-1MS 2K0145416.D 20 03/23/23 MB n/a n/a V2K4060
LA88830-1MSD 2K0145417.D 20 03/23/23 MB n/a n/a V2K4060
LA88830-1 2K0145415.D 1 03/23/23 MB n/a n/a V2K4060
The QC reported here applies to the following samples:Method: SM 6200B
LA88830-1
LA88830-1 Spike MS MS Spike MSD MSD Limits
CAS No. Compound ug/l Q ug/l ug/l % ug/l ug/l % RPD Rec/RPD
637-92-3 Ethyl Tert-Butyl Ether ND 400 385 96 400 391 98 2 70-130/20
591-78-6 2-Hexanone ND 1000 872 87 1000 826 83 5 70-130/20
87-68-3 Hexachlorobutadiene ND 400 295 74 400 285 71 3 70-130/20
98-82-8 Isopropylbenzene ND 400 314 79 400 311 78 1 70-130/20
99-87-6 p-Isopropyltoluene ND 400 329 82 400 327 82 1 70-130/20
74-83-9 Methyl Bromide ND 400 316 79 400 307 77 3 60-140/20
74-87-3 Methyl Chloride ND 400 287 71 400 279 69 3 60-140/20
74-95-3 Methylene Bromide ND 400 385 96 400 382 96 1 70-130/20
75-09-2 Methylene Chloride ND 400 365 91 400 356 89 2 70-130/20
78-93-3 Methyl Ethyl Ketone ND 1000 881 88 1000 802 80 9 70-130/20
108-10-1 4-Methyl-2-pentanone ND 1000 977 98 1000 951 95 3 70-130/20
1634-04-4 Methyl Tert Butyl Ether 0.52 400 382 95 400 385 96 1 70-130/20
91-20-3 Naphthalene ND 400 405 101 400 398 100 2 70-130/20
103-65-1 n-Propylbenzene ND 400 328 82 400 333 83 2 70-130/20
100-42-5 Styrene ND 400 378 95 400 382 96 1 70-130/20
75-85-4 Tert-Amyl Alcohol ND 4000 3690 92 4000 3010 75 20 50-150/30
c
994-05-8 Tert-Amyl Methyl Ether ND 400 372 93 400 380 95 2 70-130/20
75-65-0 Tert-Butyl Alcohol ND 2000 1850 93 2000 1360 68* b 31* a 70-130/20
762-75-4 tert-Butyl Formate ND 400 293 73 400 360 90 21 50-150/30
c
630-20-6 1,1,1,2-Tetrachloroethane ND 400 401 100 400 403 101 0 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 400 375 94 400 374 94 0 70-130/20
127-18-4 Tetrachloroethylene ND 400 278 70 400 283 71 2 70-130/20
108-88-3 Toluene ND 400 331 83 400 337 84 2 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 400 387 97 400 370 93 4 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 400 393 98 400 381 95 3 70-130/20
71-55-6 1,1,1-Trichloroethane ND 400 305 76 400 317 79 4 70-130/20
79-00-5 1,1,2-Trichloroethane ND 400 367 92 400 370 93 1 70-130/20
79-01-6 Trichloroethylene ND 400 361 90 400 369 92 2 70-130/20
75-69-4 Trichlorofluoromethane ND 400 261 65 400 262 66 0 60-140/20
96-18-4 1,2,3-Trichloropropane ND 400 368 92 400 361 90 2 70-130/20
95-63-6 1,2,4-Trimethylbenzene ND 400 354 89 400 356 89 1 70-130/20
108-67-8 1,3,5-Trimethylbenzene ND 400 348 87 400 349 87 0 70-130/20
108-05-4 Vinyl Acetate ND 400 455 114 400 463 116 2 70-130/20
75-01-4 Vinyl Chloride ND 400 269 67 400 275 69 2 60-140/20
m,p-Xylene ND 800 690 86 800 698 87 1 70-130/20
95-47-6 o-Xylene ND 400 347 87 400 348 87 0 70-130/20
* = Outside of Control Limits.
21 of 22
LA8883055.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA88830
Account:ATCNCR Atlas
Project:Pantry 161 1031 Hwy 87 N, Elon College, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA88830-1MS 2K0145416.D 20 03/23/23 MB n/a n/a V2K4060
LA88830-1MSD 2K0145417.D 20 03/23/23 MB n/a n/a V2K4060
LA88830-1 2K0145415.D 1 03/23/23 MB n/a n/a V2K4060
The QC reported here applies to the following samples:Method: SM 6200B
LA88830-1
LA88830-1 Spike MS MS Spike MSD MSD Limits
CAS No. Compound ug/l Q ug/l ug/l % ug/l ug/l % RPD Rec/RPD
1330-20-7 Xylene (total)ND 1200 1040 87 1200 1050 88 1 70-130/20
CAS No. Surrogate Recoveries MS MSD LA88830-1 Limits
17060-07-0 1,2-Dichloroethane-D4 97%100%93% 70-130%
2037-26-5 Toluene-D8 100%101%102% 70-130%
460-00-4 4-Bromofluorobenzene 95%94%97% 70-130%
(a) Outside control limits due to matrix interference.
(b) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
(c) Advisory control limits.
* = Outside of Control Limits.
22 of 22
LA8883055.3.1